1011123 has 28 divisors (see below), whose sum is σ = 1617640. Its totient is φ = 629856.

The previous prime is 1011107. The next prime is 1011137. The reversal of 1011123 is 3211101.

1011123 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 1011123 - 2⁴ = 1011107 is a prime.

It is a super-2 number, since 2×1011123² = 2044739442258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011163) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 13815 + ... + 13887.

2^1011123 is an apocalyptic number.

1011123 is a deficient number, since it is larger than the sum of its proper divisors (606517).

1011123 is an frugal number, since it uses more digits than its factorization.

1011123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1011123 is about 1005.5461202749. The cubic root of 1011123 is about 100.3694004197.

Adding to 1011123 its reverse (3211101), we get a palindrome (4222224).

The spelling of 1011123 in words is "one million, eleven thousand, one hundred twenty-three".